cybersecurity

noun

cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˌkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack

Examples of cybersecurity in a Sentence

Recent Examples on the Web
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OpenAI says this is its first model to score highly on internal cybersecurity readiness. Neetika Walter, Interesting Engineering, 5 Feb. 2026 The agency is working with its partners to stop hackers from exploiting any of the vulnerabilities identified in the report, said Nick Andersen, CISA’s executive assistant director for cybersecurity. Bloomberg, Mercury News, 5 Feb. 2026 Rockwell Automation’s 2025 State of Smart Manufacturing report found generative AI or causal AI had the biggest ROI for 15% of manufacturing firms last year, with many firms using the technology to address worker shortages, safeguard against cybersecurity risks, and to manage supply chains. Jake Angelo, Fortune, 4 Feb. 2026 The International Olympic Committee has repeatedly banned Russia for doping scandals and for its war against Ukraine, and Western countries and cybersecurity companies have in turn for years accused Russia of deploying hackers against the Olympic Games. Kevin Collier, NBC news, 4 Feb. 2026 See All Example Sentences for cybersecurity

Word History

First Known Use

1989, in the meaning defined above

Time Traveler
The first known use of cybersecurity was in 1989

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Cite this Entry

“Cybersecurity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cybersecurity. Accessed 16 Feb. 2026.

Legal Definition

cybersecurity

noun
cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˈkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack
Last Updated: - Updated example sentences
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